In: Accounting
The diagram to the right illustrates a competitive market in which the product provides an external benefit. If a voucher equal to $20/unit (i.e., a voucher equal to the marginal external benefit) is given to consumers, then total surplus will
A. fall by Area D.
B. fall by Area A+B.
C. fall by Area B.
D. rise by Area C+D.
E. rise by Area C + F.
Answer: E
Before the marginal benefit (MB):
Total surplus is the area bounded by (S = D).
After the marginal benefit (MB):
Total surplus is the area bounded by (S = MB). Therefore, there are C and F additionally. The aggregate of these two (C + F) is the excess consumer surplus, which rises.
Other options are not relevant.